Efficiency of breed linear hybridization at industrial complexes
Abstract
The experiments revealed that crossing of crossbred sows LW×Y and L×LW with hybrid boars L×D has a positive effect on increase in multiple pregnancy, milkiness and the amount of piglets at weaning by 3,5-4,4 %, 4,5 - 3,7-6,5 and 5,8 % in comparison with the best two-breed variant LW×L. It is determined that obtained from crossing of crossbred sows LW×Y and L×LW with hybrid boars L×D the final hybrids significantly surpassed by fattening traits the best two-breed variant LW×L. Good fattening traits were shown as well by three-breed hybrids (BM×L)×D and (BM×L)× L with average daily weight at the level of 801-803 g at feed cost of 3,38-3,40 kg per 1 kilogram of weight gain. It is determined that at agrokombinat «Snov» the longest carcass (97,6-98,7 cm), thin backfat (15,1-17,5 mm), large loin area (46,6-48,8 cm2) and heavy ham was peculiar of four-breed young animals of combinations (L×LW)×(L×D) and (LW×Y)×(L×D), which parameters exceeded the corresponding figures in the control group by 1,0-2,1 %, 1,8-2,7 (P≤0,05-0,001), 10,2-15,4 (P≤0,05-0,001) and 3,6-6,3 % (P≤0,05-0,01), respectively. At CJSC «Klevitsa» in the offspring obtained by crossing of crossbred sows of LW×BM and BM×L with Landrace breed boars of Canadian selection, the carcass length was the highest and made 99,6 cm and 100,5 cm, respectively, which is higher in comparison with the results of the control group (LW× BM)×D by 1,1 cm (P <0,001) and 2,0 cm (P <0,001).
About the Authors
I. P. Sheyko
RUE «Scientific and Practical Center of the National Academy of Sciences of Belarus on Animal husbandry»
Russian Federation
Russian Federation
R. I. Sheyko
RUE «Scientific and Practical Center of the National Academy of Sciences of Belarus on Animal husbandry»
Russian Federation
Russian Federation
L. A. Fedorenkova
RUE «Scientific and Practical Center of the National Academy of Sciences of Belarus on Animal husbandry»
Russian Federation
Russian Federation
T. N. Tymoshenko
RUE «Scientific and Practical Center of the National Academy of Sciences of Belarus on Animal husbandry»
Russian Federation
Russian Federation
V. N. Zayats
RUE «Scientific and Practical Center of the National Academy of Sciences of Belarus on Animal husbandry»
Russian Federation
Russian Federation
N. M. Hramchenko
RUE «Scientific and Practical Center of the National Academy of Sciences of Belarus on Animal husbandry»
Russian Federation
Russian Federation
E. A. Yanovich
RUE «Scientific and Practical Center of the National Academy of Sciences of Belarus on Animal husbandry»
Russian Federation
Russian Federation
N. V. Prystupa
RUE «Scientific and Practical Center of the National Academy of Sciences of Belarus on Animal husbandry»
Russian Federation
Russian Federation
I. I. Kardach
RUE «Scientific and Practical Center of the National Academy of Sciences of Belarus on Animal husbandry»
Russian Federation
Russian Federation
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Review
For citations:
Sheyko I.P., Sheyko R.I., Fedorenkova L.A., Tymoshenko T.N., Zayats V.N., Hramchenko N.M., Yanovich E.A., Prystupa N.V., Kardach I.I. Efficiency of breed linear hybridization at industrial complexes. Zootechnical Science of Belarus. 2014;49(1):226-236. (In Russ.)
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